Despite the cover art (and the DVD label itself, which is even more misleading), this is not a Sandra Bullock movie. See that tiny guy in the corner? He is the star of this movie. On the DVD itself, only his head is visible at the bottom of the disc, while Ms. Bullock takes up nearly half the image. While this movie does have Sandra Bullock in it, she only plays a minor role as the main character's girlfriend, and is in about five short scenes in the whole film. And I'm not sure where the picture of her with brown hair and a red dress came from, since in this movie she has black hair, wears glasses, and never wears anything close to that elegant.
But enough about misleading cover art. While the concept is fascinating, and could make a great movie, the filmmakers here really dropped the ball. This movie is bad. Unfortunately, it's not bad enough to fall into the categories of "it's so bad it's good" or "movies that are fun to make fun of". The story goes nowhere, and the ending is so quick, nonsensical, and clichéd, that it appears that they had no idea how the movie was going to end and panicked when they realized they were running out of time. Add to that that the picture and sound quality on the DVD are terrible (about the level I would expect for something taped on a VCR circa 1985 on the lowest quality setting), and this movie simply isn't worth getting.